
.normal {
  font-family: Georgia, sans-serif;
  margin-top: 4em;
  text-align: center;
}

.list {
  font-size: 1.2em;
  margin-top: 1.8em;
  list-style: none;
  line-height: 1.5em;
}

.list code {
  background: #f7f7f7;
}
/* 实现设备宽度自适应 */
@media screen and (min-width:1200px){
  .input {
    width:50rem;
    margin-top:1rem;
    margin-bottom:1rem;
  }
}
@media screen and (max-width:900px){
  .input {
    width:10rem;
    margin-top:1rem;
    margin-bottom:1rem;
  }
}